/*
 * Really easy field validation with Prototype
 * http://tetlaw.id.au/view/blog/really-easy-field-validation-with-prototype
 * Andrew Tetlaw
 * Version 1.5.3 (2006-07-15)
 * 
 * Copyright (c) 2006 Andrew Tetlaw
 * http://www.opensource.org/licenses/mit-license.php
 */
Validator = Class.create();

Validator.prototype = {
	initialize : function(className, error, test, options) {
		this.options = Object.extend({}, options || {});
		this._test = test ? test : function(v,elm){ return true };
		this.error = error ? error : 'Validation failed.';
		this.className = className;
	},
	test : function(v, elm) {
		return this._test(v,elm);
	}
}

var Validation = Class.create();

Validation.prototype = {
	initialize : function(form, options)
	{
		this.options = Object.extend({
			onSubmit : true,
			stopOnFirst : false,
			immediate : false,
			focusOnError : true,
			useTitles : false,
			onFormValidate : function(result, form) {},
			onElementValidate : function(result, elm) {}
		}, options || {});
		
		this.form = $(form);
		
		if(this.options.onSubmit) Event.observe(this.form,'submit',this.onSubmit.bind(this),false);
		
		if(this.options.immediate) 
		{
			var useTitles = this.options.useTitles;
			var callback = this.options.onElementValidate;
			Form.getElements(this.form).each(function(input) { // Thanks Mike!
				Event.observe(input, 'blur', function(ev) { Validation.validate(Event.element(ev),{useTitle : useTitles, onElementValidate : callback}); });
			});
		}
	},
	
	onSubmit :  function(ev)
	{
		if(!this.validate()) Event.stop(ev);
	},
	
	validate : function() 
	{
		var result = false;
		var useTitles = this.options.useTitles;
		var callback = this.options.onElementValidate;
		
		if(this.options.stopOnFirst) 
		{
			result = Form.getElements(this.form).all(function(elm) { return Validation.validate(elm,{useTitle : useTitles, onElementValidate : callback}); });
		} 
		else 
		{
			result = Form.getElements(this.form).collect(function(elm) { return Validation.validate(elm,{useTitle : useTitles, onElementValidate : callback}); }).all();
		}
		
		if(!result && this.options.focusOnError) 
		{
			Form.getElements(this.form).findAll(function(elm){return $(elm).hasClassName('validation-failed')}).first().focus()
		}
		
		this.options.onFormValidate(result, this.form);
		return result;
	},
	
	reset : function() 
	{
		Form.getElements(this.form).each(Validation.reset);
	}
}

Object.extend(Validation, {
	validate : function(elm, options)
	{
		options = Object.extend({
			useTitle : false,
			onElementValidate : function(result, elm) {}
		}, options || {});
		
		elm = $(elm);
		
		var cn = elm.classNames();
		
		return result = cn.all(function(value) {
			var test = Validation.test(value,elm,options.useTitle);
			
			options.onElementValidate(test, elm);
			return test;
		});
	},
	
	test : function(name, elm, useTitle) 
	{
		var v = Validation.get(name);
		var prop = '__advice'+name.camelize();
		
		if(Validation.isVisible(elm) && !v.test($F(elm), elm)) 
		{
			if(!elm[prop]) 
			{
				var advice = Validation.getAdvice(name, elm);
				if(typeof advice == 'undefined') 
				{
					var errorMsg = useTitle ? ((elm && elm.title) ? elm.title : v.error) : v.error;
					advice = '<div class="validation-advice" id="advice-' + name + '-' + Validation.getElmID(elm) +'" style="display:none">' + errorMsg + '</div>'
					
					switch (elm.type.toLowerCase()) 
					{
						case 'checkbox':						
						case 'radio':
							
							var p = elm.parentNode;
							
							if(p) 
							{
								new Insertion.Bottom(p, advice);
							} 
							else 
							{
								new Insertion.After(elm, advice);
							}
							
						break;
						default:
							
							new Insertion.After(elm, advice);
						
						break;
				    }
				    
					advice = $('advice-' + name + '-' + Validation.getElmID(elm));
				}
				
				/*
				if(typeof Effect == 'undefined') 
				{
					advice.style.display = 'block';
				} 
				else 
				{
					new Effect.Appear(advice, {duration : 1 });
				}
				*/
			}
			
			elm[prop] = true;
			elm.removeClassName('validation-passed');
			elm.addClassName('validation-failed');
			
			return false;
		} 
		else 
		{
			var advice = Validation.getAdvice(name, elm);
			
			if(typeof advice != 'undefined') advice.hide();
			
			elm[prop] = '';
			elm.removeClassName('validation-failed');
			elm.addClassName('validation-passed');
			
			return true;
		}
	},
	
	isVisible : function(elm) 
	{
		while(elm.tagName != 'BODY') 
		{
			if(!$(elm).visible()) return false;
			elm = elm.parentNode;
		}
		
		return true;
	},
	
	getAdvice : function(name, elm) 
	{
		return Try.these(
			function(){ return $('advice-' + name + '-' + Validation.getElmID(elm)) },
			function(){ return $('advice-' + Validation.getElmID(elm)) }
		);
	},
	
	getElmID : function(elm) 
	{
		return elm.id ? elm.id : elm.name;
	},
	
	reset : function(elm) 
	{
		elm = $(elm);
		var cn = elm.classNames();
		
		cn.each(function(value) 
		{
			var prop = '__advice'+value.camelize();
			
			if(elm[prop]) 
			{
				var advice = Validation.getAdvice(value, elm);
				advice.hide();
				elm[prop] = '';
			}
			
			elm.removeClassName('validation-failed');
			elm.removeClassName('validation-passed');
		});
	},
	
	add : function(className, error, test, options) 
	{
		var nv = {};
		
		nv[className] = new Validator(className, error, test, options);
		Object.extend(Validation.methods, nv);
	},
	
	addAllThese : function(validators) 
	{
		var nv = {};
		
		$A(validators).each(function(value) {
				nv[value[0]] = new Validator(value[0], value[1], value[2], (value.length > 3 ? value[3] : {}));
			});
			
		Object.extend(Validation.methods, nv);
	},
	
	get : function(name) 
	{
		return  Validation.methods[name] ? Validation.methods[name] : new Validator();
	},
	
	methods : {}
});

Validation.add('IsEmpty', '', function(v) {
				return  ((v === undefined) || (v.length == 0) || (v === "") || (v === "0")); // || /^\s+$/.test(v));
			});

Validation.addAllThese([
	['required', 'Este campo não pode ficar em branco.', function(v) {
				return !Validation.get('IsEmpty').test(v);
			}],
			
	['required-number', 'Favor digitar um número válido.', function(v) {
				return !Validation.get('IsEmpty').test(v) && (!isNaN(v) && !/^\s+$/.test(v));
			}],
	['number', 'Favor digitar um número válido.', function(v) {
				return Validation.get('IsEmpty').test(v) || (!isNaN(v) && !/^\s+$/.test(v));
			}],
			
	['required-digits', 'Somente dígitos(0-9) são permitidos. Favor retirar espaços, virgulas e outros caracteres inválidos.', function(v) {
				return !Validation.get('IsEmpty').test(v) &&  !/[^\d]/.test(v);
			}],
	['digits', 'Somente dígitos(0-9) são permitidos. Favor retirar espaços, virgulas e outros caracteres inválidos.', function(v) {
				return Validation.get('IsEmpty').test(v) ||  !/[^\d]/.test(v);
				
			}],
	['validate-alpha', 'Favor digitar somente letras(a-z ou A-Z).', function (v) {
				return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z]+$/.test(v)
			}],
	['validate-alphaspace', 'Favor digitar duas ou mais palavras.', function (v) {
				return Validation.get('IsEmpty').test(v) ||  /^[a-zA-Z]+(\s[a-zA-Z]+)+$/.test(v)
			}],
	['validate-alphanum', 'Favor digitar somente letras(a-z ou A-Z) e dígitos(0-9). Favor retirar espaços, virgulas e outros caracteres inválidos.', function(v) {
				return Validation.get('IsEmpty').test(v) ||  !/\W/.test(v)
			}],
	['validate-date', 'Favor digitar um data válida.', function(v) {
				var test = new Date(v);
				return Validation.get('IsEmpty').test(v) || !isNaN(test);
			}],
	['required-email', 'Favor digitar um email válido. Por exemplo, ze@gmail.com .', function (v) {
				return !Validation.get('IsEmpty').test(v) && /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
			}],
	['email', 'Favor digitar um email válido. Por exemplo, ze@gmail.com .', function (v) {
				return Validation.get('IsEmpty').test(v) || /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/.test(v)
			}],
	['validate-url', 'Favor digitar uma URL válida.', function (v) {
				return Validation.get('IsEmpty').test(v) || /^(http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(:(\d+))?\/?/i.test(v)
			}],
	['validate-date-au', 'Favor digitar a data no formato: dd/mm/aaaa. Por exemplo 16/10/2006 para 16 de outubro de 2006.', function(v) {
				if(Validation.get('IsEmpty').test(v)) return true;
				var regex = /^(\d{2})\/(\d{2})\/(\d{4})$/;
				if(!regex.test(v)) return false;
				var d = new Date(v.replace(regex, '$2/$1/$3'));
				return ( parseInt(RegExp.$2, 10) == (1+d.getMonth()) ) && 
							(parseInt(RegExp.$1, 10) == d.getDate()) && 
							(parseInt(RegExp.$3, 10) == d.getFullYear() );
			}],
	['validate-currency-dollar', 'Favor digitar um valor válido. Por exemplo R$100,00.', function(v) {
				// [$]1[##][,###]+[.##]
				// [$]1###+[.##]
				// [$]0.##
				// [$].##
				return Validation.get('IsEmpty').test(v) ||  /^\$?\-?([1-9]{1}[0-9]{0,2}(\,[0-9]{3})*(\.[0-9]{0,2})?|[1-9]{1}\d*(\.[0-9]{0,2})?|0(\.[0-9]{0,2})?|(\.[0-9]{1,2})?)$/.test(v)
			}],
	['validate-one-required', 'Favor selecionar uma das opções.', function (v,elm) {
				var p = elm.parentNode;
				var options = p.getElementsByTagName('INPUT');
				return $A(options).any(function(elm) {
					return $F(elm);
				});
			}],
	['required-cpf', 'Favor digitar um CPF válido.', function (v) {
				var s = v;
					
				if(v.length!=11)
				{
					return false;
				}
					
				if (isNaN(s))
				{
					return false;
				}
			
				var c = s.substr(0,9);
				var dv = s.substr(9,2);
				var d1 = 0;
			
				for (var i = 0; i < 9; i++)
				{
					d1 += c.charAt(i)*(10-i);
				}
			
				if (d1 == 0)
				{
					return false;
				}
			
				d1 = 11 - (d1 % 11);
			
				if (d1 > 9)
				{
					d1 = 0;
				}
			
				if (dv.charAt(0) != d1)
				{
					return false;
				}
			
				d1 *= 2;
			
				for (var i = 0; i < 9; i++)
				{
					d1 += c.charAt(i)*(11-i);
				}
			
				d1 = 11 - (d1 % 11);
			
				if (d1 > 9)
				{
					d1 = 0;
				}
			
				if (dv.charAt(1) != d1)
				{
					return false;
				}
			
				return true;
			}],
	['required-cnpj', 'Favor digitar um CNPJ válido.', function (v) {
				var s = v;
					
				if(v.length!=14)
				{
					return false;
				}
					
				if (isNaN(s))
				{
					return false;
				}
			
				var c = s.substr(0,12);
				var dv = s.substr(12,2);
				var d1 = 0;
			
				for (var i = 0; i <12; i++)
				{
					d1 += c.charAt(11-i)*(2+(i % 8));
				}
			
				if (d1 == 0)
				{
					return false;
				}
			
				d1 = 11 - (d1 % 11);
			
				if (d1 > 9)
				{
					d1 = 0;
				}
			
				if (dv.charAt(0) != d1)
				{
					return false;
				}
			
				d1 *= 2;
			
				for (var i = 0; i < 12; i++)
				{
					d1 += c.charAt(11-i)*(2+((i+1) % 8));
				}
			
				d1 = 11 - (d1 % 11);
			
				if (d1 > 9)
				{
					d1 = 0;
				}
			
				if (dv.charAt(1) != d1)
				{
					return false;
				}
			
				return true;
			}]
]);